Source : Webster's Revised Unabridged Dictionary (1913)

Vara \Va"ra\, n. [Sp. See 1st {Vare}.]
   A Spanish measure of length equal to about one yard. The vara
   now in use equals 33.385 inches. --Johnson's Cyc.

Source : WordNet®

vara
     n : a Spanish unit of length (about a yard) having different
         values in different localities